Press for sealing boxes



- F.1s. OPPENHEIM. PRESS FOR SEALING BOXES.

APPLICATION FILED APR.10, 1920. 1,358,981 Patented Nov. 16, 1920.

UNITED STATES PATENT OFFICE.

FERDINAND S. OPPENHEIM, F NEW YORK, N. Y.

PRESS FOR SELING BOXES.

vAppiiemion and Api-n 1e,

in gangs, e., several in a row, and the operator applies glue, paste or sodium silicate to the flaps which are to close one end of the box and then the flaps are folded one upon the other and they are pressed tightly together in' the press until the adhesive material has dried. The object of my invention is to provide a press for this purpose which is simple in construction and which will be easy to operate.

In the drawing forming part of this application,

Figure 1 is a vertical sectional view of my improved press showing the parts in the position of clamping the box,

F ig. 2 is a similar view showing the parts in position to receive a box,

Fig. 3 is a detail view showing the clarnping head and part of the box in perspective, and

Fig. 41 is a perspective view of a box.

In the drawings 1 have shown the movable parts of the press mounted on a frame 1 consisting of parallel uprights 2 and a base 3. the center of the base there is a post t on which rests a movable post 5, the latter being attached to the former by a hinge 6 whereby the movable post may swing outwardly to the position shown in Fig. 2. T here is a pawl 7 fixed to the post 5 and adapted to engage the stop member 8 for the pnrpose of arresting the post 5 in the desired position for receiving the box as shown in Fig. 2.

On the upper end of the movable post 5 there is fixed a horizontal top member or table 10 which is adapted to receive over it the boxes which are to be closed. This table preferably corresponds in length and width substantially with the inside dimensions of the boxes which are to be pressed. The table is movable with the post 5 and the former is so positioned on the latter that the Specicaton of Letters Patent.

Patented Nov. 16, 1920.

1920. Serial No. 372,989.

center of gravity is toward the front of a vertical line passing through the pivoted point or hinge 6. This will cause the table to swing forwardly automatically and by gravity to the position shown in Fig. 2. Preferably, a weight 9 is arranged under the table and forward of the post 5, for the purpose of insuring the tilting of the table as soon as the head is released.

The head for pressing the box flaps down on the table consists of a flat, rectangular lplate 11 having a depending flange 12 extending preferably around its four edges for squarlng or holding squared, the sides of the box. rlhere is a shaft 13 mounted in the socket 14. at the top of the head 11 and the ends of this shaft are journaled in hubs 15 on the upper ends of a pair of pitmen 16. The lower ends of these pitmen are pivoted at 17 to a treadle 18 which rocks from the pivot 19. The spring 2O has one end fixed to a hook 21 on the frame 1 and one end fixed to a Vhook 22 on the head and this spring serves to raise the head whenever the treadle is released from the catch 23.

The head, in addition to being raised to release the box, is also moved backwardly in order that the operator may have a clear view of the box flaps until the head is lowered. For this purpose the head is provided with a pair of pintles 24 at each side, and these engage in oblique slots 25 in the tracks 26.

Operation: The present device is used for closing one end of the box, or the end which is closed and sealed before the box is filled. and when the box reaches the operator of the present device, it consists of the four side walls 27 and also of the four end flaps 28, 29 at each end. The operator folds over the opposite end flaps 29 on one end of the box and then folds over the end flaps 28, the latter being superimposed upon the former. Before the flaps 28 are folded an adhesive, such as glue, paste or sodium silicate is applied either to the top surface of the flaps 29 or to the under surface of the flaps 28 so that these flaps will adhere one to the other. While the table 10 and its post 5 are in the forward position shown in Fig. 2, the box, prepared as above set forth, is placed over the table 10 with its open end downward and it is lowered until the closed end flaps rest upon the top surface of the table. rl`he table is then swung backwardly Y does not conform to the inside dimensions of thev box so ,as 'to maintain the' latter squared, the operator will hold the sides of the box squared until the head is lowered. lVhile the head lies in a retracted or rear position the operator is able to see the top of the box and observe whether' it is properly squared ljust before lowering the head. The treadle is then forced down by the operators foot until it is locked by the catch 23. This operation lowers the head ll in opposition .to the spring 20 which latter is distendedV by the operation. lis the head moves down, the pintles 2d traveling` in the oblique slots 25 cause the head to move forwardly to a position directly over the box. 1When the head is 'fully down it presses tightly on the top of the closed 'flaps 29, 2S, out the box and compresses the latter against the table 10. The flange l2 lies against or adjacent the four sides of the box and holds the latter squared until the flaps are entirely sealed. The box is allowed to remain in the press until the adhesive is dry and usually the operator proceeds to apply a box to another press arranged near by. lVhen the box has been subjected to pressure long` enough to properly seal the end flaps, the operator merely has to kick the treadle sidewise slightly to disengage it from the catch 23. Immediately the spring` 20 draws the head ll, the pitmen 1G and the treadle 18 upwardly, the head moving` backwardly as well as upwardly as the pintles 2d follow the slots 25. As soon as the flange l2 oi? the head disengages from the box the table automatically swings forwardly by gravity into the position shown in Fig. 2, ready for the operator to remove the box and to replace it with another. Y

llaving` described my invention, what I claim is l. A press lor sealingl boxes, including a table or platen over which a box body is adapted to be placed, a swinging; support for said platen, a head adapted to press the end of the box against said platen, means for raising` and loweringsaid head, oblique tracks and pintles on said head engaging,- said tracks and adapted to cause said head to move forwardly and backwardly as the head is lowered and raised.

2. i press for sealing boxes, including a table or platen over lwhit-h a box body is adapted to be placed, a swinging suppcrt for said platen, a head adapted to press the end of the box against said platen, a treadle`r pitmen opera-ted thereby and pivoted to 'the middle portion ot said head oblique guide tracks at opposite sides o'll said. head, and pintles on said head engaging said tracks and adapted to cause said head to inove backwardly and li'orwardly relatively to said platen as said head is raised and lowered by said treadle.

3. ilA press for sealing` boxes including` a table or platen over which a box *body is adapted to be placed, a swinging support for said platen, said platen and said support havingtheiiI center oi' gravity disposed forwardly of said support whereby when said support is vertical it will have a tendency to swing` forwardly" by gravity, a movable head adapted to press the end of the box against said platen, and means 'for raising said head and ormoving it rearwardly and adapted to lower said head and to move it forwardly over said platen. Y

Signed at the city or" Springlield, county of Ha1npdenand State of ltassachusetts. this 17th day of March, 1920. Y

FERDINAND S. OPPENHEH/L 

